The present invention relates to a device (1) for automatically cutting a material web (2) with a longitudinal cutting device (60) using a material web (2) in a longitudinal direction (L) separable in at least a partial web (3) and/or at least a remaining web (4), a discharging device (10) for automatically discharging the produced remaining web (4), a transverse cutting device (70) downstream of a longitudinal cutting device (60) for cutting the remaining web (4) transversely to the longitudinal direction (L).

The present invention relates to a device (1) for automatically cutting a material web (2) with a longitudinal cutting device (60) using a material web (2) in a longitudinal direction (L) separable in at least a partial web (3) and/or at least a remaining web (4), a discharging device (10) for automatically discharging the produced remaining web (4), a transverse cutting device (70) downstream of a longitudinal cutting device (60) for cutting the remaining web (4) transversely to the longitudinal direction (L).

A method for producing building boards includes unwinding a facing sheet from a supply roll of facing sheet over top of a forming table that includes a series of nozzles. A volume of cementitious material is deposited from a slurry mixing device to the unwound facing sheet. Pressurized air is supplied from an air source to the series of nozzles, whereby a cushion of air is created between the unwound facing sheet and the forming table.

A method for producing building boards includes unwinding a facing sheet from a supply roll of facing sheet over top of a forming table that includes a series of nozzles. A volume of cementitious material is deposited from a slurry mixing device to the unwound facing sheet. Pressurized air is supplied from an air source to the series of nozzles, whereby a cushion of air is created between the unwound facing sheet and the forming table.

The invention relates to a method and to an apparatus for transporting a tail end (6) in a fiber web machine from one structural section to another in such a way that the apparatus comprises nozzles (8) for guiding the tail end (6) on the guide plate by means of an air flow (4). What is essential in the invention is that the blown air (2) is brought onto a guide plate (1) shaped into a curve in such a way that the air flow (4) of the blown air (2) guides the tail end (6) onto the curved guide plate (1) by means of a bump (3) functioning as an aerodynamic profile, i.e. a bulge guiding the air flow (4), formed in the curved guide plate (1). In addition, the invention relates to a use of a curved plate (1) for transporting a tail end (6) in a fiber web machine from one structural section to another.

The invention relates to a method and to an apparatus for transporting a tail end (6) in a fiber web machine from one structural section to another in such a way that the apparatus comprises nozzles (8) for guiding the tail end (6) on the guide plate by means of an air flow (4). What is essential in the invention is that the blown air (2) is brought onto a guide plate (1) shaped into a curve in such a way that the air flow (4) of the blown air (2) guides the tail end (6) onto the curved guide plate (1) by means of a bump (3) functioning as an aerodynamic profile, i.e. a bulge guiding the air flow (4), formed in the curved guide plate (1). In addition, the invention relates to a use of a curved plate (1) for transporting a tail end (6) in a fiber web machine from one structural section to another.

A belt-form body conveyor that conveys a belt-form body includes a plurality of non-contact guide portions over which portions of the belt-form body are wound, and that support the belt-form body in a non-contact manner, a drive unit that moves at least one non-contact guide portion out of the plurality of non-contact guide portions, and a control unit that causes the non-contact guide portion to be moved by the drive unit such that a length of a path in which a first edge in a width direction of the belt-form body travels is different from a length of a path in which a second edge which is opposite to the first edge in the width direction of the belt-form body travels.

A belt-form body conveyor that conveys a belt-form body includes a plurality of non-contact guide portions over which portions of the belt-form body are wound, and that support the belt-form body in a non-contact manner, a drive unit that moves at least one non-contact guide portion out of the plurality of non-contact guide portions, and a control unit that causes the non-contact guide portion to be moved by the drive unit such that a length of a path in which a first edge in a width direction of the belt-form body travels is different from a length of a path in which a second edge which is opposite to the first edge in the width direction of the belt-form body travels.

Methods and apparatus for transporting a flexible substrate are provided. In one embodiment, an air turn is disclosed that includes a body, a porous cover disposed about a circumference of the body, and two seals. Each of the two seals are positioned about the circumference of the body and spaced apart from each other in a longitudinal direction of the body to define a central zone bounded by a second zone and by a third zone. The second zone and third zone are each positioned outside of a respective seal. The body includes a first opening formed along a longitudinal axis of the body, and a plurality of second openings formed in the body at a position other than along the longitudinal axis.

A belt-shaped material conveying apparatus that supports a belt-shaped material conveyed in a conveying direction to a wind-up roll at a carrying-out side from a feed roll at a carrying-in side between these rolls in a noncontact state by air streams spouted to the belt-shaped material from support pads disposed to face a top surface side and an undersurface side of the belt-shaped material respectively, includes a pair of hydraulic cylinders as tilt means that tilts the support pad in the width direction of the belt-shaped material which crosses the conveying direction of the belt-shaped material.